#253151
Closest named color: Prussian Blue (#1D3557). oklch(31.9% 0.06 267.4), rgb(37, 49, 81).
Aa
White text reads best on this color (12.82:1).
About this color
#253151 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.060 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.016 away. White text reads best on it, at 12.82:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.63:1 |
| White text | 12.82:1 |
Values
| HEX | #253151 |
| RGB | rgb(37, 49, 81) |
| HSL | hsl(224, 37%, 23%) |
| OKLCH | oklch(31.9% 0.06 267.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #253151 | 12.82:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #253151 | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #253151 text on white | 12.82:1 | AAA | Lc 98.9 | Preferred for body text |
| #253151 text on black | 1.63:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CED9F4
oklch(88.5% 0.039 267.9)
-
Step 300
300
#ACC0EF
oklch(80.9% 0.07 266.8)
-
Step 400
400
#819EE8
oklch(70.7% 0.114 267.2)
-
Step 500
500
#6384E0
oklch(63.1% 0.144 267.4)
-
Step 600
600
#4B6BCE
oklch(55.5% 0.157 267.6)
-
Step 700
700
#3C59B3
oklch(49.1% 0.147 267.4)
-
Step 800
800
#324991
oklch(42.7% 0.122 267.7)
-
Step 900
900
#2B3E73
oklch(37.7% 0.094 267)
-
Step 950
950 (this color)
#253151
oklch(31.9% 0.06 267.4)
#253151 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #253452 | 0.009 |
| Deuteranopia (no green cones) | #203050 | 0.008 |
| Tritanopia (no blue cones) | #12383D | 0.054 |
| Achromatopsia (no color) | #323232 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #253151
#253151
oklch(31.9% 0.06 267.4)
- #3F3007
#3F3007
oklch(31.8% 0.059 87.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #253151, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.016
- Space Cadet #2B2D42 ΔE 0.028
- Gunmetal #293241 ΔE 0.031
- Dark Blue Grey #1F3B4D ΔE 0.036
- Midnight Green #073B4C ΔE 0.043
- Marine #042E60 ΔE 0.044
- Marine Blue #01386A ΔE 0.051
- Oxford Blue #1B263B ΔE 0.053
Use #253151 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.